1) Make friends with people in businesses close by who use paper for non-confidential products that only use one side. For instance, I have a friend in a car showroom – they print dozens of car lists every month that are given out freely to customers (so not at all confidential), and that are printed on only one side. Each month, my friend collects all the unused car lists, and instead of dumping them in the recycling bin, which costs the company money, she gives them to me, and I use the blank side for printing. Once they’ve passed their useful life, I shred them and put them in my recycling bin.

2) As a follow-up to this one, I’m able to use much more of this once-used paper by not returning work on paper. If I do need to print off work (for instance, proofs), I mark up on paper, scan the marked-up pages, and send the work off as a TIFF/PDF file. Thus, it doesn’t matter what’s on the other side of the page, as no-one else is going to see it. It also saves money in stamps and envelopes, and saves time too.